LED faucet color changing with temperature detectable battery needed when water flows down, the LED will light instantly and automatically When water temperature is below 31 degree, blue color will show automatically; When water temperature is between 32~43 degree, warm-white color will show automatically; When water temperature is between 44~50 degree, red color will show automatically; When water temperature is above 51degree, red color will flash immediatelly. The critical point of temperature can be designed as the customers requirement. This item will change its color bu detecting water temperature. Automatical color changing LED lighting color: Blue green red blue-green red-green red-blue red-green-blue battery needed When water flows down,the LED will light instantly and automatically Btightness is such enough even no other lighting fuxtures need This item will color changing with step by step, Single color also can be made. Material:Brass+Glass+plating